Conveying device



v. D. POPOV CONVEYING DEVICE Filed July 29, 1931' IV I Sept. 12, 1933.

/we/v ma E/ D. Papal Patented Sept. 12, 1933" a r "1,925,914 Y IDinitri'jevi Popov, Prague; Czecho- Slovakia atamarans 29; 19a1 s'r'ia1*1-io. 553,832

- em? in sz eqe e August 2 5 Claims. (o1. 198-20 9) This inventionrelates to anew and improved device for theconveying of dividedormeasured off quantities of a snbstanceor; an articlefroman apparatuswhich delivers these quantities orpor- 54 tions, e. g anautomaticweighing machine, to an apparatus-which worksup orotherwise deals withthese quantities, eg. a packing machine. In the V mechanical working upor treatmento'fmeasured quantities of a substance it is absolutelynecessary that these quantities bedeliveredor brought up to the machineconcerned e. g a packing machine, uniformly at certain perfectly regularintervals oftime. Theuniform delivery of certaintypes of 'material andgoods,particularly-suchas do not readily permit of being poured, inquantities of given weight to a machine for further dealing with thesequantities involvesconsiderable techii {cal difiiculties A- uniformlytimed f nctioning of the weighing process with an automatic weighingmachine can be obtained onlyby the useof complicated technicalexpedients: always entails a sacrifice of accuracy in'the weighing,andfinally Zd emands constant and careiul tending of the mai' Thepresent i vention hasifor its object toprovide an; automaticallyoperating conveyingdevice' which delivers the, measured quantitiesderived from any typed-apparatus,- e, g an automatic weighing machine,not, directly by means of reties are further dealt with; but collects aplurality both ofthe filled receptacles-and of the empty receptaclesinlfreserve, so that a supply of receptacles is kept inir eadi nessiorboth the measuramnesia the machine iniwhi'ch-the said quanti ingandithe'working apparatus to which theyiare bassed Qn' edu rs i h b il der nce inrt dffworking to be neglected. 1 V T ,egamme o'f the carryin'gout of the invention isillust ated accompanying drawing, in

4 0 which;

-ing'ortransporting member,which can take the .formofawheel;;antendlessbelt, or any other ;s uitab1e uninterrupted vmovab le unit, and of a.plurality of.receptacles jtor the quantities to =be conveyed,these-receptaclesbeing adapted to beset in motion by the above mentioneddrivingor ,5? transport m mber al ne r les P haT connection} of thereceptacles to the rotating transporting member is such that thereceptacles can bearrested and'set in motionas required in the simplestpossible manner by the interposition and withdrawal of suitableobstacles in the path of the said receptacles. I

The1constructional example shown in the drawing comprises atransportingmember in the form of a wheel 1. which'is in one piece with the worm.wheelz (see Figs; 1 and 2) The wheel 1 is driven by means of thepulleywheel 3, the worm 4, and theworm wheel 2, so that a continuous rotating,motion is imparted to the wheel 1 about the spindle 5 which is mountedin the stand 6. Onthe periphery-of the wheel 1 there is provided'a slip-:ping and transporting rim from which' the receptacles 7, 7a; 7b,,etc.,are suspended by means of their grooves 8 (Fig. 3 andA);

The above described connection between the transporting. member and thereceptacles'is only taken as onepossible'example'for this connectionwhich can'be effected in a great variety of ways.

The receptacles thus arranged'on therim 1 are transported by virtue offriction, anditravel on a circular pathabout the spindle '5. If anymechanical obstacle beinterposed in the'path of the receptacles, thefirst of-the receptacles to encounter: this obstacle will; be preventedfrom travelling in company with the transporting member, and thefollowing receptacles, will likejwise be arrested. If this-obstacle bethen withdrawn,- the r eceptacle thereby; released will be taken by th erevolving itransportingsmember, and vthus;conveyed along theendlesspath. Itwill be clear that by the interposition-of an obstaclevfirstonereceptacleis arrested and then in succession the subsequentreceptacles: The vpossibility is thus-provided, by the provision ofcontrollable obstaclesat selected points on the path; of collecting areserve-supplyboth .ofvfilled and of empty re- .ceptacles andofliberating the same for convey- \ance as Iequired 4 I V"e-Thedetails-the Q veying def ice, andpits mode of operation; will nowbe described, the apparatus front which the. divided quantities of asubstance are derivedbeing', taken-by way of example, to be a weighingmachine andithe apparatus for the subsequentworkin l p or treatment ofthe saidv quantities being taken, by way l xample'tobe a packingmachine.

V The materialor goods destined for packing; which is weighed byhand orin an automatic ,weighing niachine, passes into the'hopper 11 (Fig.

72) which is arranged at the point P1 on the path or conveyance. Fromthe hopper 11 the materialrow a-b to the position P2 where the falls inconsequence of its own weight into the receptacle positioned at P1. Assoon as the whole of the portion of material has fallen into the saidreceptacle, the lever 9 is rocked either automatically in conjunctionwith the weighing machine or by hand from the position in which it isshown in full lines in Fig. .1 into the position in which it is 'showninbroken lines irrtheI same figure, and thus liberates the receptacle 7 IThis receptacle is transported by the rim of the wheel 1, and travelsabout the spindle 5 in the direction of the arrow ab to the position P2.As soon as the receptacle '7 has left the position P1, the lever 9 isreturned either automatically as by spring 12 or by hand to itsinitialposition, and presents its" end to be encountered by the stop 10aon the next receptacle in; it arrests this receptacle and the subsequentreceptacles on the rim of the transporting wheel. r c I It will beclearthat two receptacles, for instance the receptacles"? and 7a, can also befilled simultaneously at the position P1. In this case the ma terial isdelivered from two automaticweighing machines through two hopperspositioned above the receptacles. The lever 9, and the stops '10, 10a,etc., must in this case be so arranged that'tw'o filled receptacles arereleased at a time.

After liberation'of the receptacle 'lby the lever '9, this receptacle 7travels at a certain distance from'the receptacle '71 which in Fig- 1 isshown at an intermediate position in the course of its movement' fromPl-tOPZ. "As soon as thereceptacle 71 reaches therreceptacle Us, thereceptacle-'71 is brought torestin contact with the receptacle 7k, andthereafter the receptacle '7 with the receptacle W, and similarly insuccession the following receptacles" each in contact with the precedingreceptacle in their order of arrangement. These receptaclesthu'scrowd'ed up to each other to form a reserve supply are liberatedconsecutively and transported in the direction of the armaterial ispassed on to the packi'n'gmachine- The pouring out of the material at-Pzinto the hopper 13 and thence into the packing machine (not shown) ais effected by the opening of the bottom 14, 14a, etc., of thereceptacles 7, 7a, etc. As long as the receptacles are travelling fromthe position P1 to thep'osition P2, they are closed at the bottom bythe'latche's 15, 15a, 1517, etc., (Fig. 2). As soon as any one of thecontainers, e. g. the receptacle 7e, arrives atthe position Pa, thelatch l5eis swung round by the action or the fixed stop 16'(Figs.1 and2) and liberates the bottom. The material-"drops out of thereceptacleinto the hopper 13, 'and passes thence into the packing machine which,after 'each'bperating cycledealingwithone portion of material, actuatesa stop lever 17 similar to the lever 9. 1 This actuation is carried outat regular intervals of,

time corresponding to the working period of the packing machine. Thereceptacles 7e; 7), etc.,

are thus emptied at regular intervals inthe position P2, and themeasured quantities of material are delivered at regular'intervals' tothe packing machine. The empty receptacles liberated'by the stop lever17 are transported by the rotating member 1 from the position-'Pi intothe position P the receptacle 'ldbe'ing shown in'Fig. 1 in anintermediate-positionfon this partof the course. On theway from P2 to P1the, floors or the receptacles are closed in succession by the action ofa stationary closing member 18 which is at 'tached to the stand 6. In'the position P1 the floors of the receptaclesywhich arealready in thevided with a spring23-and :30. Precisely "as with the device 21, thedevice 22 the supply of receptacles is exhausted;

The feeler levers'21 'and'22 can also ranged at other positions than atP1 and P2 at 7P2 at perfectly equal intervals of time. It is obviousthat the average output of theautomatic weighing" machine, e. g. in theminute, must approximately correspond to that of the packing machine,approximate conformity in this sense being easily attainable byadjustment of the respeetive machines.

It is nevertheless possible, for a number of reasons; for the reservesupply of empty receptacles at P1 or of full receptacles at P2 to become"exhausted. In order that'in such-circumstances neither the automaticweighing machine nor the packing'machine shall run'idle, thepresentconveying device is provided with automatically operatingchecking devices 2-1-and 22 which serve to stop'these machinesautomatically when the supply of receptacles at P1 or at P2 falls belowa when the supply becomes sufli cient.

I The checking devices 21 and 22 each consist of a feeler lever one armof which is acted upon by a spring.- The other arm of this lever isadaptcertain minimum number, and to restart them ed to co-operate withstops 10, 10a, 10b, etc., on V the receptacles (see Fig; 1). If thereare "receptacles at P1 the feeler lever 21 will be retained by the stops10,10a, etc., in the normal position "in which it is shown in fulllinesjin Fig. 1, that is to say in opposition to the action of thespring 28. In this position of the Iever'contact may for example,as'shown in the drawing, be established between the spring 26 and thescrew 27. By this means, as can be seen from Fig. 1, any known electricmeans-B which sustain electrically the operation of the automaticweighing machine are switched on. If all the receptacles at Pi'havebeen-used up, the feeler lever 21 is brought by the action ofthe'spring'28 out of its normal position into the position indicated'inbroken lines and closes, forexample, by means of the contacts, 26

and 29 the electric current circuit of any known device A- designed tostop the working of the automatic weighing machine. The device 22 at P2is constructed in a similarmanner, beingprocontacts 2 '25, and

ensures the continued operationof the packing machine, for example bymeansof the fdevice Bi,

as long as there are 'full' receptacles at the position P2, andinterrupts the'operation of' this machine by means of the device A1 assoon as As will be understood from the above descriplevers 21 and 22which bring into action the electric devices A, A1, 'orB, B1; It will beclear without further explanation that the movements of these feelerlevers can be'utilized mechanically for the direct stopping of .theautomatic weighing machine or ofthe packing machine;' a form ofconstruction embodying this variation is how'- everfnot shown in the rbe artion, the stopping and starting'of the automatic weighing, machineand of the packing machine is 'efiected'bythe rocking movements of the'feeler of the automatic weighing machine or of the packing machine onlyafter the supply of receptacles is exhausted, and may for example bedisposed at acertain distance in front of 'the posi-v tions Prand P2, sothat the automatic stopping of the weighing machine and of the packingmachine is eiiected before the supply of receptacles at P1 and P2 iscompletely exhausted and is merely reduced to a predetermined minimum.In the form of construction shown in the drawing, the two checkingdevices 21, 22 are provided ona carrier 35 adapted to be adjusted andfixed in any desired position'on a circle, i. e. along the path ofconveyance. a I

The present device for the conveyance of measured quantities of materialfrom one or more automatic weighing machines to a packing machine thusfunctions in such a manner that receptacles with material are stored upin reserve,

and that the material is transferred from these" receptacles to thepacking machine at certain moments; further, the device stores up theempty receptacles in front'ofthe position on theconveyirig track atwhich these receptacles are filled with material. The presentdevice thusenables irregularly working automatic weighing -machines to befunctionally combined with a regu- V example, when the whole of thematerial which has been placed in the automatic weighing machine or thelike is exhausted.

.What I claim is:'-' 1 1. Apparatus for the conveyance-of weighedormeasured off quantities of material from a" filling machine, to areceiving machine operating non-synchronouslywith the filling machine,including a continuously moving transporting wheel provided withaslip-and-take rim on its periphery, a plurality of receptaclesincluding coupling means for connection to the slip-andtake rim of thetransporting wheel and stops engaging in the closed moving path of thereceptacles, the said stops temporarily interrupting the conveyance ofthe receptacles by the slipand-take rim at the filling and dischargingpoints and enabling, after the filling and discharging, the conveyanceof the receptacles from the filling. point to the discharging pointthereof and back again by the slip-and-take rim;

2. Apparatus according to claim Land in combination therewith separatemeans for maintainingthe operation'of the machines'and renderingthefmachines'inoperative, and control feeler levers provided at thepointswhere the filling and discharging of material take place on thenonsynchronously operating machines, for contacting with the receptaclespassing outside the same and maintaining by said means the operation .of

p the corresponding machinewhen there is a sulficient supply of vessels,but when the supply of vessels is consumed, that is to say, when thecontact of thefeeler lever with the receptacle is interrupted thismachine is rendered inoperative until the supply of receptacles isrenewed and the contact with the receptacles is again, estab-- alongthepath of conveyance, substantially as and for the purposes setforth. I

4.'Apparatus for the conveyance of divided or measured off quantities ofa substance or article from a feeding machine to a receiving machine,comprising a closed transporting member in the form of a rotatableslip-and-take rim, a plurality of receptacles carried by saidtransporting member and adapted torotate therewith, said receptaclesincluding coupling means adapted to engage said rim, and means formaintaining a number of said receptacles in a position of rest when saidtransporting member is rotating.

5. Apparatus as claimed in claim 4, wherein the slip-and-take rim of thetransporting memberis of annular construction.

